Method for producing a smart card module for contactless smart cards

• US 5,809,633 A
• Filed: 03/05/1997
• Issued: 09/22/1998
• Est. Priority Date: 09/05/1994
• Status: Expired due to Term

• Current Assignee: Infineon Technologies AG
• Original Assignee: Siemens AG
• Inventors: Houdeau, Detlef, Mundigl, Josef
• Primary Examiner(s): Arbes, Carl J.
• Application Number:
  US08/812,111
• Time in Patent Office: 566 Days
• Field of Search: 29/600, 29/827, 235/382, 235/380
• US Class Current: 29/600
• CPC Class Codes: G06K 19/07747 at least one of the integrated circuit chips being mounted as a module
• CPC Class Codes: G06K 19/07749 the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
• CPC Class Codes: G06K 19/0775 arrangements for connecting the integrated circuit to the antenna
• CPC Class Codes: G06K 19/07779 the inductive antenna being a coil
• CPC Class Codes: G06K 19/07781 the coil being fabricated in a winding process
• CPC Class Codes: G06K 19/07783 the coil being planar
• CPC Class Codes: H01L 2224/05599 Material
• CPC Class Codes: H01L 2224/45124 Aluminium (Al) as principal constituent
• CPC Class Codes: H01L 2224/4813 Connecting within a semiconductor or solid-state body, i.e. fly wire, bridge wire
• CPC Class Codes: H01L 2224/48472 the other connecting portion not on the bonding area also being a wedge bond, i.e. wedge-to-wedge
• CPC Class Codes: H01L 2224/48699 Principal constituent of the connecting portion of the wire connector being Aluminium (Al)
• CPC Class Codes: H01L 2224/49 of a plurality of wire connectors
• CPC Class Codes: H01L 2224/85399 Material
• CPC Class Codes: H01L 24/45 of an individual wire connector
• CPC Class Codes: H01L 24/48 of an individual wire connector
• CPC Class Codes: H01L 24/49 of a plurality of wire connectors
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/00011 Not relevant to the scope of the group, the symbol of which is combined with the symbol of this group
• CPC Class Codes: H01L 2924/00014 the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details
• CPC Class Codes: H01L 2924/01005 Boron [B]
• CPC Class Codes: H01L 2924/01013 : Aluminum [Al]
• CPC Class Codes: H01L 2924/01029 : Copper [Cu]
• CPC Class Codes: H01L 2924/01047 : Silver [Ag]
• CPC Class Codes: H01L 2924/0105 : Tin [Sn]
• CPC Class Codes: H01L 2924/01068 : Erbium [Er]
• CPC Class Codes: H01L 2924/01078 : Platinum [Pt]
• CPC Class Codes: H01L 2924/01079 : Gold [Au]
• CPC Class Codes: H01L 2924/01082 : Lead [Pb]
• CPC Class Codes: H01L 2924/014 : Solder alloys
• CPC Class Codes: H01L 2924/12042 : LASER
• CPC Class Codes: Y10T 29/49016 : Antenna or wave energy "plumbing" making
• CPC Class Codes: Y10T 29/49121 : Beam lead frame or beam lead device

Abstract

A method for producing a smart card module includes bonding one end of a thin wire onto a first contact zone of a semiconductor chip. The wire is guided in a plurality of turns forming an antenna coil. The wire is bonded onto a second contact area of the semiconductor chip. The wire turns of the antenna coil and the semiconductor chip are placed on a carrier body.

Claims

1. A method for producing a smart card module, which comprises:

bonding one end of a thin wire onto a first contact zone of a semiconductor chip;

guiding the wire in a plurality of turns forming an antenna coil;

bonding the wire onto a second contact area of the semiconductor chip; and

placing the wire turns of the antenna coil and the semiconductor chip on a carrier body.

2. The method according to claim 1, which comprises performing the guiding step with a bonding head.

3. The method according to claim 1, which comprises placing the semiconductor chip in a recess in the carrier body and suspending the semiconductor chip from bonds at the ends of the wire, while carrying out the step of placing the wire turns of the antenna coil and the semiconductor chip on the carrier body.